SALVADOR, Brazil -- Thomas Mueller scored a hat trick as Germany turned on its style and power to rout 10-man Portugal 4-0 in their World Cup Group G opener on Monday.
Mueller, who scored five goals at the 2010 World Cup, was ruthless against a weak Portugal team that was clearly outplayed.
With German Chancellor Angela Merkel watching in the stands, her team celebrated its 100th World Cup match with a rousing victory.
The match was virtually decided by halftime, with Mueller scoring either side of Mats Hummels' headed goal as Germany took a 3-0 lead at the break.
Portugal was reduced to 10 men when Pepe was red carded in the 37th minute for apparently head-butting Mueller as the German player sat on the ground.